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Finding the Fourth Proportional to 215,804.99, 297,688.77 and 135,092.34

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Solution

The fourth proportional to 215,804.99, 297,688.77 and 135,092.34 is: 186,350.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,804.99 : 297,688.77 = 135,092.34 : x
  2. Step 2: Convert to fraction form
    215,804.99/297,688.77 = 135,092.34/x
  3. Step 3: Cross multiply
    215,804.99x = 297,688.77 × 135,092.34
  4. Step 4: Simplify right side
    215,804.99x = 40,215,472,531.02
  5. Step 5: Solve for x
    x = 40,215,472,531.02/215,804.99
  6. Step 6: Final answer
    x = 186,350.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.